Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING REVENUES
Leasing	$ 1,736,000	$ 1,916,000
Total operating revenues	2,035,000	2,334,000
OPERATING COSTS AND EXPENSES
Leasing	776,000	720,000
General and administrative	760,000	864,000
Share-based compensation	425,000	598,000
Depreciation	323,000	361,000
Total operating costs and expenses	3,029,000	3,118,000
OPERATING LOSS	(994,000)	(784,000)
Pension and other post-retirement expenses	(117,000)	(253,000)
Interest expense	(46,000)	(47,000)
LOSS FROM CONTINUING OPERATIONS	(1,157,000)	(1,084,000)
Income (Loss) from discontinued operations, net	83,000	(11,000)
NET LOSS	(1,074,000)	(1,095,000)
Pension, net	206,000	211,000
COMPREHENSIVE LOSS	$ (868,000)	$ (884,000)
EARNINGS (LOSS) PER COMMON SHARE-BASIC AND DILUTED
Loss from Continuing Operations (in dollars per share)	$ (0.06)	$ (0.06)
Income (Loss) from Discontinued Operations (in dollars per share)
Net Loss (in dollars per share)	$ (0.06)	$ (0.06)
Real Estate [Member]
OPERATING REVENUES
Operating revenues	$ 69,000	$ 157,000
OPERATING COSTS AND EXPENSES
Operating Costs and Expenses	175,000	264,000
Resort Amenities and Other [Member]
OPERATING REVENUES
Operating revenues	230,000	261,000
OPERATING COSTS AND EXPENSES
Operating Costs and Expenses	$ 570,000	$ 311,000